General Studies
Divisibility by 11 — Alternating digit sum: subtract sum of odd-position digits from even-position digits; if result is 0 or divisible by 11, the number is divisible by 11 (e.g., 121: 1-2+1=0).
VIBGYOR for Spectrum — Violet, Indigo, Blue, Green, Yellow, Orange, Red remembers visible light spectrum in order of increasing wavelength (violet shortest, red longest).
Latitudes Mnemonic — "Elephants Are Cute Creatures" = Equator (0°), Arctic Circle (66.5°N), Cancer (23.5°N), Capricorn (23.5°S) for major latitude lines.
pH Scale Quick Check — pH < 7 is acidic (like lemon), pH = 7 is neutral (water), pH > 7 is basic/alkaline (soap); each unit change = 10x difference in concentration.
Fundamental Rights (6 Categories) — "ERFCCP" = Equality, Religion, Freedom, Culture, Constitutional remedies, Property (deleted by 44th Amendment, now legal right only).
Directive Principles Articles — Articles 36-51 contain DPSP; remember "36-51 = Social Welfare Direction" to recall range; enforceable via Article 32 for Fundamental Rights, not DPSP.
Monsoon Direction — Summer monsoon (SW) = June-September brings rain; Winter monsoon (NE) = October-December, mostly dry except Tamil Nadu coast gets rain.
BODMAS Trap — Brackets, Orders (powers), Division/Multiplication (left-to-right), Addition/Subtraction (left-to-right); many get wrong by doing all multiplication before division.
Quit India Date Anchor — 8/8/42 (August 8, 1942) — symmetrical date makes it memorable; launched by Gandhi with "Do or Die" slogan in Bombay.
UN Security Council — "FRUCE + 10" = France, Russia, UK, China, USA are 5 permanent members (veto power) + 10 rotating non-permanent members (2-year terms).
Distance = Speed × Time Triangle — Cover "D" to get S×T; cover "S" to get D/T; cover "T" to get D/S — visual trick for formula manipulation.
Sangam Age Dynasties — "CCP" = Cheras (Kerala), Cholas (Kaveri), Pandyas (Madurai) — three ancient Tamil kingdoms ruling concurrent territories in South India.
General Knowledge of Uttarakhand
Uttarakhand Formation Date — 9-11-2000 (9th November 2000) as 27th state; remember "9-11" like the date format, carved from Uttar Pradesh after long statehood movement.
Five Major Glaciers — "Gang-Pi-Mi-Ka-Sa" = Gangotri (largest, 30km), Pindari, Milam, Kafni, Satopanth — these are most frequently asked glaciers in Uttarakhand exams.
Two Divisions Quick Recall — Kumaon (6 districts) + Garhwal (7 districts) = 13 total districts; Kumaon capital Nainital, Garhwal capital Pauri Garhwal for administrative purposes.
Char Dham Circuit — "BGKY clockwise" = Badrinath, Kedarnath, Gangotri, Yamunotri (but pilgrims traditionally go Yamunotri→Gangotri→Kedarnath→Badrinath, west to east).